Compilare: main.cpp: In function 'int main()': main.cpp:36:21: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i=ptr; i<strlen(c2); i++) { | ~^~~~~~~~~~~ main.cpp:38:14: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 38 | if(i < strlen(c2) - 1) | ~~^~~~~~~~~~~~~~~~